Home / 145,530,016.40-218,295,024.60-69,002,512.40

Finding the Fourth Proportional to 145,530,016.40, 218,295,024.60 and 69,002,512.40

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Solution

The fourth proportional to 145,530,016.40, 218,295,024.60 and 69,002,512.40 is: 103,503,768.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,530,016.40 : 218,295,024.60 = 69,002,512.40 : x
  2. Step 2: Convert to fraction form
    145,530,016.40/218,295,024.60 = 69,002,512.40/x
  3. Step 3: Cross multiply
    145,530,016.40x = 218,295,024.60 × 69,002,512.40
  4. Step 4: Simplify right side
    145,530,016.40x = 15,062,905,141,819,806
  5. Step 5: Solve for x
    x = 15,062,905,141,819,806/145,530,016.40
  6. Step 6: Final answer
    x = 103,503,768.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.